blue lawnoun [ C ]uk /ˈbluː ˌlɔː/ us /ˈbluː ˌlɑː/ US old-fashioned informal
Examples from literature
- Enforcement of the blue laws would make Sunday not a day of resting but of arresting.
- The laws against witchcraft, the long line of "blue laws," the laws affecting religious beliefs and many social customs, are well-known examples of legal and innocent acts which legislatures and courts have once made criminal.
- The old blue laws were stringently enforced, and the penalty for infringement was usually a sharp one.